| RE36743 |
Pre-mix flame type burner |
— |
2000-06-20 |
| 5458484 |
Pre-mix flame type burner |
— |
1995-10-17 |
| 5247804 |
Method and apparatus for recovering and purifying refrigerant including liquid recovery |
Lowell E. Paige |
1993-09-28 |
| 5181390 |
Manually operated refrigerant recovery apparatus |
Wayne B. Cavanaugh, Lowell E. Paige |
1993-01-26 |
| 5174124 |
Apparatus for sampling the purity of refrigerant flowing through a refrigeration circuit |
Lowell E. Paige |
1992-12-29 |
| 5127232 |
Method and apparatus for recovering and purifying refrigerant |
Lowell E. Paige |
1992-07-07 |
| 5112217 |
Method and apparatus for controlling fuel-to-air ratio of the combustible gas supply of a radiant burner |
Daniel R. Clark |
1992-05-12 |
| 5076494 |
Integrated hot water supply and space heating system |
— |
1991-12-31 |
| 5038750 |
Air heating apparatus |
Norman A. Washburn |
1991-08-13 |
| 5010740 |
Refrigeration system with mass flow limiting device |
Robert J. Backus, Robert A. Chopko, Alan S. Drucker |
1991-04-30 |
| 4993402 |
Fuel efficient rapid response water heating module |
— |
1991-02-19 |
| 4945890 |
Induced draft warm air furnace with radiant infrared burner |
— |
1990-08-07 |
| 4904179 |
Low NO.sub.x primary zone radiant screen device |
Thomas E. Drago |
1990-02-27 |
| 4880157 |
Capacity control for integrated furnace |
Jay L. Boot, Ian M. Shapiro |
1989-11-14 |
| 4807588 |
Water permeable heat exchanger for condensing furnace |
Richard M. Bentley, Henry F. Keller |
1989-02-28 |
| 4782815 |
Liquid-backed gas-fired heating system |
James N. Friedman |
1988-11-08 |
| 4776320 |
Device for inhibiting NO.sub.x formation by a combustion system |
John A. Shaheen |
1988-10-11 |
| 4738394 |
Integral liquid-backed gas-fired space heating and hot water system |
Jay L. Boot, Ian M. Shapiro |
1988-04-19 |
| 4570612 |
Induced draft submerged burner |
James N. Friedman, Thomas E. Drago |
1986-02-18 |
| 4467780 |
High efficiency clamshell heat exchanger |
— |
1984-08-28 |
| 4231417 |
Method and apparatus for reducing corrosion in a heat exchanger |
— |
1980-11-04 |